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(No Model.)

J; E. WARE.

PIRE PROOF GBILING.

Patented May 15,1883.v

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UNITED STATES PATENT OFFICE,

JAMES E. WARE, OF NEW YORK, N. Y.

FIRE-PROOF CEILING.

SPECIFICATION forming part of Letters Patent No. 277,814, dated May 15, 1883,

Application tiled February 2G, 1883.

T 0 all whom yt may concern:

Be it known that I, JAMES E. VARE, ot' the city, county, and State ot' New York. have invented certain new and useful Improvements in Fire-ProofI Ceilings, ot which the following is a specification.

This invention has. reference to an improved lire-prootl ceiling, by which the iron Hoorbeams are fully protected against warping and injury by lire and a. stronger and more durable tlat arch formed between the beams, and the invention consistsot' the combination, with the iron Hoor-beams, of skewbacks that extend below the bottom ot' the beams and support a at arch composed ot` hollow archblocks, which are extended downward to a level with the bottom and provided with hollow bottom portions below the arch portions proper, so as to form a protection to the body or main part of the arch.

The accompany-ing drawing represents a vertical transverse section ot' a hre-prootl ceiling made according to my improved construc tion.

A in the drawing represents the I-shaped iron door-beams, B the skewbacks, U the hollow rhombic arclrblocks, and I) the keyblocks, which form together a .so-called tlatarch, that is well known in architecture. The skewbacks B arc extended to a suitable distance below the bottom of the beams, and l'orm a joint below the center or" the same. The hollow arch-blocks U and the key-block D are extended to the same extent, so that their bottoms are on a level with the bottom ot' the skewbacks B. This is done by providing the arch-blocks (l and D with hollow bottom cavities, a a, below the level ofthe base oll the beams and main arch. This construction has the advantage that not only (No model.)

broken and injured bottom parts ot the archblocks are filled up solidly with plaster, so that the arch proper is strengthened and protected and the continuity ot the ceiling preserved, as no portion thereof is liable to drop owingto tlaws or weaknessesiu thearch-blocks, as has been the case heretofore.

Haviugthus described my invention, l claim as new and desire to secure by Letters Patent-ll. In tire-proof ceilings, the combination, with the floor-beams, ot' skewbacks extending around and meeting below the britse ofthe beams, and ot' hollow arch-blocks that are provided with hollow bottom parts below the main portions, that form the body or main part ot' the arch, substantially as specied.

2. In tire-proof ceilings, the combination ot' skewbacks that extend around and meet below the base ot' the beams, and hollow archblocks that arc provided with hollow bottom portions below their main portions, said bot tom portions being on a level with the bottom portions ot' the skewback, substantially as specified.

In testimony that I claim the foregoing as my invention I have signed my name in presence ot' two subscribing witnesses.

JAMES E. WARE.

Witnesses:

A. B. SMITH, HALcYoN M. CLOSE. 

